Finding the Fourth Proportional to 88,365.68, 121,940.98 and 48,079.60
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Solution
The fourth proportional to 88,365.68, 121,940.98 and 48,079.60 is: 66,347.85
Step by Step Solution
- Step 1: Write the proportion equation
88,365.68 : 121,940.98 = 48,079.60 : x - Step 2: Convert to fraction form
88,365.68/121,940.98 = 48,079.60/x - Step 3: Cross multiply
88,365.68x = 121,940.98 × 48,079.60 - Step 4: Simplify right side
88,365.68x = 5,862,872,932.30 - Step 5: Solve for x
x = 5,862,872,932.30/88,365.68 - Step 6: Final answer
x = 66,347.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.